noting down nice bases:
Reddish: Auburn, Mojave, Pyrope, Realgar, Sarder,
Blackish: Grulla, Biotite, Bronze, Deni, Iridium, Seal, Slate,
Grey-White: Chromium, Diorite, Nepheline, Opal, Titanium,
Yellow, brown: Sulphur, Wulfenite,
